Preheat Oven: Preheat your oven to 400°F (200°C).

Season the Chicken: In a small bowl, mix together the garlic powder, onion powder, paprika, salt, and black pepper. Rub this seasoning mixture all over the chicken breasts.

Cook the Chicken: Heat the olive oil in a large oven-safe skillet over medium-high heat. Add the chicken breasts and cook for 4-5 minutes on each side, or until they are golden brown and cooked through (internal temperature should reach 165°F or 74°C). Remove the skillet from heat.

Prepare the Ranch Spread: In a small bowl, mix together the ranch dressing and 1/4 cup of shredded Parmesan cheese. Spread this mixture evenly over each chicken breast.

Make the Parmesan Crust: In a separate bowl, combine the shredded Parmesan cheese, shredded provolone cheese, panko breadcrumbs, melted butter, mayonnaise, and Dijon mustard. Stir until the mixture is well combined.

Add the Parmesan Crust: Evenly distribute the Parmesan crust mixture over the top of each chicken breast.

Bake: Transfer the skillet to the preheated oven and bake for 5-7 minutes, or until the cheese topping is melted and bubbly and the breadcrumbs are golden brown.

Serve: Remove the skillet from the oven and let the chicken rest for a few minutes before serving. Garnish with fresh parsley if desired.